Matter and Energy in an Ecosystem

Fill in the blank: An ________ is a community of interacting organisms and their physical environment.

• ecosystem

• organism

• habitat

• population

Fill in the blank: ________ are living things that use air, water, and energy from the sun to make their food.

• producers

• consumers

• decomposers

• predators

Fill in the blank: ________ are living things that must eat other living things (plants and/or animals) to get their energy.

• consumers

• producers

• decomposers

• autotrophs

Fill in the blank: A ________ or primary consumer is an animal that only eats plants (cows or deer).

• herbivore

• carnivore

• omnivore

• scavenger

Fill in the blank: A ________ or secondary or tertiary consumer is an animal that eats other animals (lions or sharks).

• carnivore

• herbivore

• omnivore

• producer

Fill in the blank: An ________ or secondary or tertiary consumer is an animal that eats both plants and other animals (bears or squirrels).

• omnivore

• herbivore

• carnivore

• producer

Fill in the blank: ________ are consumers that feed on the remains of plants and animals.

• decomposers

• producers

• herbivores

• carnivores

Fill in the blank: ________ are one path on how each living thing gets its food, and its energy from its food.

• food chains

• water cycles

• rock layers

• weather patterns

Fill in the blank: ________ are many food chains that are linked to one another within a community.

• food webs

• food chains

• food cycles

• food groups

Fill in the blank: A ________ is an animal that hunts and eats other animals.

• predator

• herbivore

• scavenger

• prey